The Church celebrates the Memorial of St. Josaphat (1580-1643), a Catholic of the Ruthenian rite. He was an apostle of the return of the Orthodox schismatics to the Church of Rome. Born in the then Polish region of Lithuania of Orthodox parents, he became a Catholic and a Ukrainian Basilian monk. Chosen bishop, he worked faithfully for the unity of the Church until he suffered martyrdom at the hands of an angry mob in Russia in 1623 at the age of forty-three. He is one of the patrons of Poland.